3-2-1 Backup Planner & Cost Estimator
Tell us your data size, user type and how critical the data is. Get a concrete 3-2-1 backup plan with media recommendations, rough monthly cost bands and a ransomware-safe checklist.
Cloud: roughly 2 - 6 EUR/month (for 500 GB, varies by provider)
Local hardware: one-time ~1,500 - 5,000 TL (external disk / portable SSD)
The 3-2-1 rule
The 3-2-1 rule is the backup standard trusted worldwide: keep 3 copies of your data, on 2 different media types, with 1 copy stored offsite. This single principle defends against the most common loss scenarios at once, from a dying disk to a stolen laptop. Read our full 3-2-1 backup guide.
Why RAID is not a backup
RAID keeps your system running when a disk fails, but it mirrors every action instantly. Delete a file, hit a corrupting bug or get hit by ransomware, and all RAID members are affected together. RAID is availability, not a backup. See our RAID 5 recovery process and costs.
Ransomware and the offline copy
Modern ransomware actively hunts for and encrypts connected backups, including synced cloud folders. That is why at least one copy must be offline or immutable, where attackers cannot reach or alter it. Always test your restores so you know the copy actually works. Explore DSET data recovery services.
Frequently asked questions
What is the 3-2-1 rule?
Keep at least 3 copies of your data, on 2 different media types, with 1 copy stored offsite (or in the cloud). It protects you against single-device failure, local disasters and accidental deletion.
Is RAID a backup?
No. RAID protects against a disk failing, but it does not protect against deletion, corruption, file overwrite or ransomware, because every change is written to all disks at once. RAID complements a backup, it does not replace it.
Cloud or local backup?
Use both. Local backups are fast to restore and a one-time hardware cost. Cloud backups give you the required offsite copy and survive fire, theft and local ransomware. The 3-2-1 plan combines them.
How often should I back up?
It depends on how much you can afford to lose. For frequently changing or critical data, run hourly or continuous incremental backups plus a daily full backup. For low-change data, weekly full plus a monthly archive is usually enough.
Contact DSET
DSET · Data recovery and cybersecurity, Ankara.